Exam (elaborations)
CT Scan questions with correct answers rated 100%.
- Course
- Institution
CT Scan questions with correct answers rated 100%.
[Show more]
Seller
Follow
Content preview
CT Scan questions with correct answersrated 100%.
the assigned number that is related to the linear attenuation coefficient of the tissue within each voxel ANS - ct number
opening in the center of the gantry ANS - aperture
ct number of water ANS - zero
t or f A pt with a pacemaker can have a CT scan ANS - true
circular device that houses the xray tube ANS - gantry
single square or picture element within a matrix ANS - pixel
amount of blurring detail and sharpness ANS - spatial resolution
caused most common by quantum noise ANS - noise
t or f An arterial puncture is made for CT ANS - False
range of CT numbers used to map signals into shades of gray ANS - window width
Dental fillings or a pacemaker can cause ANS - artifact
the process of creating a cross sectional tomographic plane of the body ANS - computed tomography measures the radiation that exits the patient ANS - detectors
an array of numbers in a grid of rows and colums ANS - matrix
midpoint of the gray range ,controls image brightness ANS - window level
volume of tissue, product of pixel area and slice thickness ANS - voxel
amount of data displayed on a monitor ANS - field of view
technique that allows the contrast of image to be altered ANS - windowing
this sends information, or primary data to computer ANS - detector assembly
computer uses to compile and calculate data ANS - algorithm
computer assembles data into matrix to form ANS - axial image
in the body the point of reference is ANS - anatomical position
xray tube --> detector assembly--> primary data--> ANS - algorithm-->matrix-->axial image on CRT
the most frequently used section in imaging modalities ANS - axial/transverse/horizontal plane
specific sagittal plane that passes through the midline is ANS - midsagittal ( all others are parasagittal)
who developed CT ANS - godfrey Hounsfield and allan Cormack in 1970
1st brain tissue scanner was in ANS - 1971
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Professorkaylee. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.39. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
67163 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now